Ontong Java II by Hans Klaar

Discussion in 'Multihulls' started by JCaprani, May 3, 2012.

  1. Angélique
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    Angélique aka Angel (only by name)

    Ah, some of John's photos of the Ontong Java II build can be found here1 and here2 at Wharram Builders and Fiends :)

    1 tag ‘‘Ontong’’ 16 pics now.
    2 tag ‘‘ontong’’ 1 pic now. - (only a capital difference)​

    Anybody more links or info :?:

    Cheers,
    Angel
     
  2. Angélique
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    Angélique aka Angel (only by name)

    Sailing World, post on May 15, 2013, has a progress report of Hans from end 2012.

    Cheers,
    Angel

    PS - Post #30, ‘‘eaghties’’ must be ‘‘eighties’’, too late to edit that :eek:
     
  3. Alex.A
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    Alex.A Senior Member

  4. peterAustralia
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    peterAustralia Senior Member

    May I ask some questions

    Would anyone hazard a guess at planking thickness (1.5 inches sound right?), anyone hazard a guess at what was used as varnish? I do see total weight is 7 tonnes, that gives a clue. Yes I know I could ask Hans directly, (he actually sent me an email), however my guess is he has better things to do than waste time on the internet.

    I seems there was no eletricity and hence no power tools in the build, must have made it harder. At the moment I am comparing Ontong Java to O Tahiti Nui Freedom, that seems to have a more rounded bottom, whereas Ontong Java has a more vee hull. I also note that the Vee angle (deadrise) is quite shallow for a multihull with no board. I assume this was to get shoal draught, also the heavier construction technique (versus say plywood) means that wider hulls can support hte weight better, and still provide adequate freeboard
     
  5. Angélique
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    Angélique aka Angel (only by name)

    I've seen extension cords and an old electric drill in the now gone pictures earlier posted by John on this thread.

    And a genset can be seen on several of the pictures here.

    Cheers,
    Angel

    PS
    From the links in post#31 more power tools can be seen, and maybe a rough guess of planking thickness can be made from those pics ?
     
  6. peterAustralia
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    peterAustralia Senior Member

    well its a really dumb way to determine planking thickness, (smart way is to ask) but looks like 1.25 inches (5 pixels divided 444 ) x 9ft x 305= 31mm There is obviously a lot of possible error there, but the 5 pixels looks right. Maybe below the waterline the planks there are thicker
     
  7. Angélique
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    Angélique aka Angel (only by name)

    The west African pirogues of the same building style have a solid beam of wood some 40 - 50 cm (16'' - 20'') thick as a keel. See the PDF in post #30.

    Cheers,
    Angel
     
    Last edited: Aug 6, 2013
  8. JCaprani
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    JCaprani Junior Member

  9. Angélique
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    Angélique aka Angel (only by name)

    Thanks John [​IMG]

    Good luck!
    Angel
     

  10. Angélique
    Joined: Feb 2009
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    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

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